It looks like the light placement, to me, could be better. I like the funny character though.
A good test is to simply delete all your lights and turn Ambient Occulsion. Set your samples to 3 for a quick-render, 7 for reasonable final, and 5 for compromise. You need to have raytracing turned on for this to work. I generally set the Ambient Occulsion to Sky Color and then enable blend in the world settings. This produces a gradient shading effect that you can tweak by simply picking different colors for the gradient.
I’ll just have to move around, add and delete some lights then.
that AO render is to test out what exactly?
very thanks for the reply 
To me that looks like some bad topology, and the lighting just brings it out. wireframe plzkthxbai.
Just the AO produces a very flatly lite scene, so I think he just wants you to check to see if it still occurs with the very simple “lighting” AO produces.
What image format are you saving your renders? It is possible that could cause some problems.
